<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <style>
        button {
            background-color: aqua;
            width: 100px;
            height: 100px;
            color: bisque;
            border-radius:10;
            font-size: 20px;
        }
    </style>
    <title>Document</title>
</head>
<body>
    <button>我是一个按钮哦</button>
    <script>
        document.querySelector('button').onclick = function () {
            console.log('李雨涛真帅')
            setTimeout(() => {
                console.log('哈哈哈哈哈哈')
            },1000)
        }
    </script>
</body>
</html>